Water Pump Impeller Service Kit – Fits Suzuki 4-Stroke DF8A/DF9.9A/DF9.9B/DF15A/DF20A (Replaces 17400-99J01, 17400-99J02)

Water Pump Impeller Service Kit – Fits Suzuki 4-Stroke DF8A/DF9.9A/DF9.9B/DF15A/DF20A

This water pump impeller service kit is designed for Suzuki 4-Stroke 8–20 HP outboard motors (DF8A, DF9.9A, DF9.9B, DF15A, DF20A) from 2010 to present. It provides all the necessary components for a complete water pump overhaul, ensuring your engine maintains proper cooling and performance.

Engineered as a direct replacement for Suzuki OEM parts, this kit simplifies maintenance and restores cooling efficiency. It replaces Suzuki part numbers 17400-99J01 and 17400-99J02, as well as aftermarket parts from UANOFCN (17400-99J01) and MARKGOO (17400-99J20).

• Installation Method: Direct replacement for OEM components.
• Durable Materials: Features a Neoprene rubber impeller and a 316 stainless steel housing plate for corrosion resistance and longevity.
• Complete Service Kit: Includes the impeller, wear plate, shaft key, and all required gaskets for a full service.

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below. For Suzuki owners, You can review exploded diagrams here to verify part numbers: Suzuki Parts Diagrams & Catalog.

Technical Specifications

Package Contents

• 1 x Water Pump Impeller (17461-939M0)
• 1 x Pump Wear Plate (17471-99J00)
• 1 x Impeller Shaft Key (09420-03009)
• 1 x Housing Gasket (17472-99J00)
• 1 x Impeller Gasket (17473-94J00)

Installation Guide

1. Disconnect the battery and locate the lower unit of your outboard.
2. Place a drain pan under the gearcase and remove the drain screw to empty the gear oil.
3. Remove the mounting bolts securing the lower unit (gearcase) and carefully separate it from the upper engine casing.
4. Unscrew the bolts on the water pump housing and lift it off to expose the impeller.
5. Note the rotational direction of the old impeller's vanes before removing it from the drive shaft.
6. Remove the old impeller, gaskets, wear plate, and the small impeller shaft key.
7. Thoroughly clean all mating surfaces, removing any old gasket material or corrosion.
8. Install the new wear plate and housing gaskets. Place the new shaft key into its slot on the driveshaft.
9. Slide the new impeller onto the driveshaft, turning the shaft clockwise to seat the vanes correctly inside the housing.
10. Reinstall the water pump housing, ensuring a snug fit, and tighten the bolts to the manufacturer-specified torque.
11. Carefully guide the driveshaft back into the engine and re-attach the lower unit.
12. Refill the gearcase with the correct grade of marine gear oil and test the engine in water, confirming a steady water stream from the tell-tale port.

Troubleshooting & FAQ

How do I confirm this fits my engine?
This kit is designed for Suzuki 4-Stroke outboards including DF8A, DF9.9A, DF9.9B, DF15A, and DF20A models from 2010 to the present. Please check the "Compatible Engine Models" table and cross-reference your OEM part number (17400-99J01 or 17400-99J02) to ensure a perfect match.

What are the signs that a water pump impeller needs replacement?
Common signs of a failing impeller include a weak or non-existent water stream from the tell-tale port, engine overheating alarms, and visible cracks or stiffness in the old impeller's rubber vanes upon inspection.

How often should the water pump impeller be replaced?
For optimal performance and engine safety, we recommend inspecting the impeller annually and replacing it every 1-2 years or every 100-200 hours of use, depending on operating conditions (e.g., saltwater vs. freshwater).

OEM vs. Aftermarket?
This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

How fast do you ship and how much does it cost?
We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

What is your warranty and return policy?
This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.